Steps to replicate the issue (include links if applicable):
- On any object page, e.g. https://www.wikifunctions.org/view/en/Z10001, click on "N languages" button
- In "Labels in other languages" popup, click Add language .
- In the Language field on "Edit information", type (paste) a language name in Arabic or Cyrillic script. e.g. الدارجة (Arabic), Беларускi (Belarusian). Note: both strings are recognized by the uls on wikidata. الدارجة
What happens?:
- language names in native scripts are not recognized - no suggestions are displayed
NOTE: If a user changes UI lang, the issue is not present.
- If a language name is typed more or less slowly, multiple warnings will be displayed:
 |  |  |
What should have happened instead?:
- native names of languages should be recognized without switching the entire UI to language that is going to be added
- no multiple identical warnings should be displayed
